613000881 has 12 divisors (see below), whose sum is σ = 907042500. Its totient is φ = 398699520.

The previous prime is 613000879. The next prime is 613000891. The reversal of 613000881 is 188000316.

It can be written as a sum of positive squares in 2 ways, for example, as 120560400 + 492440481 = 10980^2 + 22191^2 .

It is not a de Polignac number, because 613000881 - 2¹ = 613000879 is a prime.

It is a super-2 number, since 2×613000881² = 751540160213552322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (613000891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830256 + ... + 830993.

It is an arithmetic number, because the mean of its divisors is an integer number (75586875).

Almost surely, 2^613000881 is an apocalyptic number.

It is an amenable number.

613000881 is a deficient number, since it is larger than the sum of its proper divisors (294041619).

613000881 is a wasteful number, since it uses less digits than its factorization.

613000881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661296 (or 1661293 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 613000881 is about 24758.8545979009. The cubic root of 613000881 is about 849.4810585579.

The spelling of 613000881 in words is "six hundred thirteen million, eight hundred eighty-one", and thus it is an aban number.